Rock River is a township in Alger County, Michigan, home to about 1,173 people across 81 square miles. Its ZIP codes are 49816, 49825 and 49826, and parts of 49806, 49885 and 49891 are in Rock River too.
Homes sold for a median of $291 per square foot across 3 ZIP codes in the three months ending August 2026, and 1 of 3 were seller’s markets.
Mostly Rock River; also Mathias and Limestone
Mostly Rock River; also Onota
All in Rock River
Mostly Au Train; part is in Rock River
Mostly Skandia; part is in Rock River
Mostly Limestone; part is in Rock River
Each card is that ZIP code’s whole market, including any part outside Rock River. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Rock River’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | General Mitchell International Airport (MKE)238 miles away |
|---|---|
| Closer regional airport | Marquette Sawyer Regional Airport (MQT)17 miles away |
| Nearest city of 250,000+ | Milwaukee, WI231 miles away |
| Nearest city of 1 million+ | Chicago, IL313 miles away |
Straight-line distances from the center of Rock River; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Rock River had 1,231 residents in the 2020 census, up 1% since 2000.
It’s the 1109th largest of 1,531 towns in Michigan by population.
Alger County grew from 5,868 residents in 1900 to 8,842 in 2020.
Alger County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 78°F in summer, and winter lows average 7°F. About 35.1 inches of rain and melted snow fall in a typical year, with about 164 inches of snow.
Source: NOAA 1991–2020 climate normals, Chatham Exp Farm 2, MI weather station (5 miles away).
1,733 jobs at 220 businesses in Alger County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
3 doctors and other health care providers list an office in Rock River’s ZIP codes.
Nearest hospitals
Providers with an office here
| Specialist doctors | 1 |
|---|---|
| Nurse practitioners and physician assistants | 1 |
| Chiropractors | 1 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (2 nearby)
Grocery stores (1 nearby)
Counts are within about 6 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by Superior Central School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Superior Central SchoolEben Junction | Pre-K–12 | 329 | Public | 2.9 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Chocolay, Skandia, West Branch Township (Marquette County), Forsyth, Limestone, Mathias, Onota and Au Train.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.